88/7r^2=154

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Solution for 88/7r^2=154 equation: 


r in (-oo:+oo)

(88/7)*r^2 = 154 // - 154

(88/7)*r^2-154 = 0

88/7*r^2 = 154 // : 88/7

r^2 = 49/4

r^2 = 49/4 // ^ 1/2

abs(r) = 7/2

r = 7/2 or r = -7/2

r in { 7/2, -7/2 }

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